U.S. patent number 4,394,539 [Application Number 06/247,013] was granted by the patent office on 1983-07-19 for timepiece with automatic time setting system thru dial telephone line and automatic speed adjusting system.
Invention is credited to Tsan-chen Chu.
United States Patent |
4,394,539 |
Chu |
July 19, 1983 |
Timepiece with automatic time setting system thru dial telephone
line and automatic speed adjusting system
Abstract
A timepiece with automatic time setting and speed adjusting
system can, thru the dial telephone line, call the standard time
repeat station to check the standard telephone system standard
time. When receiving the time announcement signals from the time
repeat station, a separation circuit and a voice signal
identification circuit pick up the time calibration signal to
calibrate the time and adjust the speed of the timepiece
automatically. At the same time, a time differential signal is
transmitted to the automatic dialing circuit to connect to the
telephone line and store the time to a memory circuit to permit
dialing the time repeat station again to process the automatic time
setting system and automatic speed adjusting system. In addition,
the timepiece is connected to several secondary timepieces which
have a simple mechanism and circuit structure so as to assure that
there will be no time variation with this invention.
Inventors: |
Chu; Tsan-chen (Taipei,
TW) |
Family
ID: |
22933181 |
Appl.
No.: |
06/247,013 |
Filed: |
March 24, 1981 |
Current U.S.
Class: |
379/102.01;
368/4; 377/16; 968/907 |
Current CPC
Class: |
G04R
20/14 (20130101); H04M 11/00 (20130101) |
Current International
Class: |
G04G
5/00 (20060101); H04M 11/00 (20060101); H04M
011/00 () |
Field of
Search: |
;179/2TC,2A,2AM,1SB,1Sd,6.04,6.07 ;368/4,13,55 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Rubinson; G. Z.
Assistant Examiner: Brady; W. J.
Attorney, Agent or Firm: Holman & Stern
Claims
I claim:
1. An automatic time-setting and adjusting system for a timepiece
to be used in conjunction with a telephone standard time
annunciation station which, when dialed, provides a voice signal
announcing a approaching time and audible tone designating that
time at the proper instant, said system comprising:
first means for dialing said standard time annunciation system at a
prescribed time;
second means connected to said telephone line for separating voice
signals from said audible tone;
third means for analyzing the received voice signal from the
standard time annunciation station to determine the announced
time;
fourth means for counting time synchronously with said timepiece
and providing a time signal representing the time registered at
said timepiece;
fifth means for determining the time difference between the
determined announced time and the time represented by said time
signal and providing a time differential signal corresponding to
the determined time difference;
sixth means for adjusting the time and operating speed of said
timepiece in accordance with said time differential signal; and
seventh means responsive to said time differential signal for
determining said prescribed time.
2. The system according to claim 7 further comprising:
a secondary timepiece;
eighth means for counting time synchronously with said secondary
timepiece and providing a further time signal representing the time
registered at said secondary timepiece;
ninth means for determining the time difference between the
determined announced time and the time represented by said further
time signal and providing a further time differential signal
corresponding to the determined time difference; and
tenth means for adjusting the time and operating speed of said
secondary timepiece in accordance with said further time
differential signal.
3. A method for automatically setting and adjusting the time of a
timepiece in conjunction with a telephone standard time
annunciation station which, when dialed, provides a voice signal
announcing an approaching time and an audible tone designating that
time at the proper instant, said method comprising the steps
of:
automatically dialing said standard time annunciation system at a
prescribed time;
separating voice signal from said audible tone when received on
said telephone line;
analyzing the received voice signal from the standard time
annunciation station to determine the announced time;
counting time in synchronism with said timepiece and providing a
time signal representing the time registered at said timepiece;
determining the time difference between the determined announced
time and the time represented by said time signal and providing a
time differential signal corresponding to the determined time
difference;
adjusting the time and operating speed of said timepiece in
accordance with the time differential signal; and
determining said prescribed time in response to said time
differential signal.
4. The method according to claim 3 further comprising the steps
of:
counting time in synchronism with a secondary timepiece and
providing a further time signal representing the time registered at
said further timepiece;
determining the time difference between the determined announced
time and the time represented by said further time signal and
providing a further time differential signal corresponding to that
determined time difference; and
adjusting the time and operating speed of the secondary timepiece
in accordance with the further time differential signal.
Description
BRIEF SUMMARY OF THE INVENTION
This invention provides a timepiece with automatic time setting
system thru a dial delephone line and automatic speed adjusting
system; it comprises a "primary timepiece" and a "secondary
timepiece". Before the time calibration takes place, the primary
timepiece select a suitable time to dial the telephone manner of
the telephone time repeat station. The system can identify the
announced time information. As soon as the predetermined time
repeat signal is received, the primary timepiece and secondary
timepiece automatically calibrate the standard time;
simultaneously, the two timepieces count their time differences
respective, and automatically adjust the speed. Therefore a
timepiece system having no time variation from standard time is
provided by this invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a system block diagram of this invention.
FIG. 2 shows a block diagram of the primary timepiece of embodiment
No. 1 of this invention.
FIG. 3 shows the system connection diagram between the primary
timepiece and the secondary timepiece of embodiment No. 1 of this
invention.
FIGS. 4, 5, 6, and 7 show the embodiments of the circuit diagrams
of the primary timepiece of this invention.
FIG. 8 shows the interface circuit diagram of this invention being
used with the hand timepiece.
FIG. 9 shows the time calibration control circuit of this invention
being used with the central hand timepiece.
FIG. 10 shows the control and the monitor circuit of this invention
being used with telephone line.
FIG. 11 shows the circuit diagram of the secondary timepiece of
this invention.
FIG. 12 shows the automatic dial and time signal separation control
circuit being used with the American type of time repeat
system.
FIG. 13 shows the timing diagram of a Chinese type time repeat
system and time repeat signal syllable.
FIG. 14 shows the timing diagram of an American type time repeat
system and time repeat signal syllable.
DETAILED DESCRIPTION
As the Chinese proverb says, "One inch of time is equal to one inch
of gold." It means that time is a valuable resource of mankind.
Unfortunately, a timepiece itself is liable to have some tolerance
and to be slow or fast from time to time, although it has been used
by mankind as a common standard of time. As a result of the said
time tolerance in a region, many mistakes may be caused by the
people of that region. For instance, a company, a factory, or a
railroad station should have a standard time to be observed by all
persons working in that area; even a family should also have a
standard timepiece which can automatically calibrate the standard
time and can automatically adjust its mechanism so as to keep the
timepiece always within an acceptable tolerance. In view of the
aforesaid facts, I have developed a timepiece system which has the
following special features;
(A) Prior to calibrating the time setting calibration time set, it
automatically and non-periodically calls the time repeat station by
dialing on the telephone line.
(B) It automatically calibrates its time setting to the
announcement of the time repeat station so as to keep its time
always the same as that of the time repeat station.
(C) According to the difference between the time repeat station
time, and the timepiece setting, this timepiece automatically
adjusts its running speed so as to keep the time difference to a
minimum.
(D) Within a time tolerance of positive or negative 25 minutes, the
said timepiece can automatically calibrate itself and adjust its
speed.
(E) In order to minimize the time of occupying the telephone line,
the said timepiece can adjust the starting time of occupying
telephone line automatically by using the time difference.
(F) The time duration between each time calibration and speed
adjustment may be determined at the option of the user; for
instance, it can be adjusted to everyday, every hour, or any time
length required.
(G) By means of a separating circuit for the time repeat signal and
voice signal, the time repeat signal and the voice signal are
identified by the silent intervals between adjacent syllables; and
by means of a voice signal discrimination circuit, the time
calibration signal can be identified by the number of syllables it
contains and the time calibration signal can process the automatic
time calibration and speed adjustment operations.
(H) The primary timepiece can be simply connected to several
secondary timepieces which can thereby be calibrated to the
standard time with the single telephone line and have their speeds
adjusted at the same time; consequently, each timepiece will be in
synchronously related both time and in speed.
(I) This invention can be used for digit timepiece or hand
timepiece.
(J) This invention can be used with a timepiece using AC power
supply, DC battery, or mechanical spring.
FIGS. 1 and 2 show block diagrams being used for the primary
timepieces in this invention. The said circuits can be used
together with a digit timepiece or a hand timepiece, or a
mechanical spring timepiece 41. A system block diagram of this
invention is shown in FIG. 1, which comprises the primary timepiece
106 and the secondary timepiece 107. Further, the said primary
timepiece 106 comprises automaic dial circuit 108, separating
circuit for time repeat signal and voice signal 109, voice signal
identifying and time calibration signal analyzing circuit 110,
conventional timepiece 41, telephone line switching circuit and
automatic dialing starting time adjusting circuit 111, the
timepiece synchronous time counting circuit 112, and time
differential signal synthetic circuit 113. The secondary timepiece
107 comprises the conventional timepiece 114, the time differential
signal synthesizer circuit 115, and the timepiece synchronous time
counting circuit 116.
FIG. 3 is a block diagram of the whole system of a first embodiment
of this invention, in which the primary timepiece 106 block diagram
comprises, as shown in FIG. 2, conventional timepiece 41, interface
circuit 1, oscillation circuit 2, divider 3, telephone line
switching circuit and automatic dialing starting time adjusting
circuit 4, telephone line monitor circuit 5, telephone set
separation circuit 6, telephone line switching and dialing circuit
7, audio frequency amplifier 8, audio frequency separation and
amplification circuit 9, speaker 9B, syllable generating circuit
10, differential circuit 11, switch 12, dialing pulse and syllable
interval timing circuit 13, switching circuit 14, dialing pulse
generating circuit 15, telephone time signal and voice signal
separating circuit 16, time signal output circuit 17, voice signal
output circuit 18, voice signal discrimination circuit 19, time
signal analyzing circuit 20, signal resetting circuit 22, time
signal output circuit 21, frequency selection switch circuit 23,
synchronization timing circuit 24, time signal output circuit 25,
system trouble monitor circuit 26, time difference advance/lag
discrimination circuit 27, time differences count circuit 28, the
circuit 29 of stopping (holding) signal output, "zero" second
setting (seconds and 10's of seconds reset to zero) differential
signal output circuit 30, fast set control signal output circuit
31, speed increasing control signal output circuit 32, speed
reducing control signal output circuit 33, divider 34, time delay
circuit 35, stopping signal output circuit 36, second hand fast
rotating signal output circuit 37, time repeat monitor circuit 38,
time calibration frequency selection circuit 39, telephone 40,
power supply circuit 55, and switches 42, 43, & 44.
The circuit and theory of the primary timepiece as shown in the
first embodiment are explained as follows:
1. Analysis of the characteristics of telephone time repeat
system:
(1). FIG. 13 shows the Chinese type of telephone time repeat system
and the syllable of time repeat signal; thru the syllable of FIG.
13, some characteristics may be analyzed as follows:
(A) Between the syllable of time repeat signal (Du . . . ) and the
adjacent syllables, there is a longer silent interval, while there
is no such condition existing in other voice syllables. In the
circuit of primary timepiece as shown in the first embodiment, this
characteristic is used for separating the time repeat signal and
the voice signal.
(B). From 10 minutes and 20 seconds past every hour thru 59 minutes
and 50 seconds before every hour (from 10:10 and 20 seconds thru
10:59 and 50 seconds), the number of voice syllables generated
every 10 seconds generated is more than that generated during the
time of zero minute and zero second of next hour (For example,
during the period from 3:10 and 20 seconds thru 3:59 and 50
seconds, the voice syllables generated every 10 seconds are more
than ten each, but at 4:00 sharp, the voice syllables generated are
reduced to ten suddenly.
Therefore, when this invention is used with the Chinese type of
telephone time repeat system, the time selected for time
calibration is at zero minute and second of every hour (It is
better to select a moment in the early morning, during which the
telephone line is not busy and almost everyone is in deep sleep).
By the same token, the time repeat signal at "zero minute and zero
second" is picked up from the circuit of the primary timepiece as
shown in the first embodiment in accordance with the number of
voice syllables, and is used as a reference signal. The system
mentioned above is good for use in countries in which the syllable
is clear, or one word having one syllable, such as China, Japan,
and Korea, etc. The first embodiment is good for the Chinese type
of time repeat system, and its explanation is based on a design set
at 04:00 AM.
(2). FIG. 14 shows the American type of telephone time repeat
system and the syllable of time repeat signal; thru the syllable of
FIG. 14, some characteristics may be analyzed as follows:
(A). Between the preparatory signal (Du . . .), the time repeat
signal (Lin . . .) and the adjacent syllable, ther is a longer
silent interval, while there is no such condition existing in other
voice signal syllables. In the primary timepiece circuit as shown
in the first embodiment, this characteristic is used for separating
the time repeat signal (including the preparatory signal) and the
voice signal.
(B). The voice signal appears in a, b, c syllable groups, and
between the said syllable groups, there is a longer silent
interval; in the syllable groups "a" and "c", there are at least
two or mre syllables, while in the syllable group "b", there is
one, or two, or more than two syllables.
From 11 minutes and zero second passed every hour thru zero minute
and 50 seconds of next hour, there are two or more than two voice
syllables appearing in syllable group "b" every 10 seconds; then,
at one minute and zero second, the number of voice syllable is
suddenly reduced to one syllable (i.e., during this time, there is
only one syllable in between the two long silent intervals). When
this invention is used for Americal type of time repeat system, the
calibration time is designed to set at one minute and zero second
of any hour (However, it is better to select a moment in the early
morning, during which the telephone line is not busy and almost
everyone is in deep sleep). Consequently, the time repeat signal at
"one minute and zero second" is picked up (to by pass the
preparatory signal first) in accordance with the number of
syllables appeared in the aforesaid syllable group "b" as shown in
the circuit of the primary timepiece in the first embodiment, and
will be used as a reference signal. The system mentioned in (2)
above is good for the time repeat system in all Teuton or Latin
language countries, such as the United States, European countries,
etc. The first embodiment is good for the American type of time
repeat system, and its explanation is based on a design set at
04:01 and zero second AM (it may be set at any suitable time).
2. Referring to FIGS. 4-7 when the circuit of the primary timepiece
in the first embodiment is in the normal stable state, the Q output
terminal of each the NOR R/S LATCH is LOW except for 1J, 14A, 26H,
1PQ, 14AA which are all HIGH.
3. The conventional timepiece 41 will, at 03:00 AM, have a HIGH
output pulse, which will, thru the lead wire 118 and the AND GATE
1A, change the LOW output of the Q terminal of NOR R/S LATCH 1B to
HIGH. When conventional timepiece 41 is at 03:58 (it may be set at
a time other than the aforesaid time; if the time is set at 03:35,
the maximum time tolerance difference will be about .+-.25
minutes), it will generate another HIGH output pulse, which will,
thru lead-in wire 119 and the AND GATE 1E, change the LOW Q output
of NOR R/S LATCH 1I to HIGH; then, thru lead wire 121, OR GATE 1N,
AND GATE 2C, and OR GATE 2D, the pulse causes the OSC, comprising
SCHMITT TRIGGER 2E and 2H, to start to oscillate, and the said two
trigger circuits generate their outputs thru the INVERTERS 2F and
2G, respectively. The circuit of SCHMITT TRIGGER 2E is a
non-equilibrium square wave OSC. of 10 HZ, and each cycle of its
HIGH output takes 67 ms., while each cycle of LOW output takes 33
ms. on the contrary, the circuit of SCHMITT TRIGGER 2H is an
equilibrium square wave OSC. of 240 HZ (for more details, see FIG.
4).
If the timepiece is a hand type, the dotted line portion 137A in
FIG. 4 and 138A in FIG. 7 should be replaced with the dotted line
portion 137B of FIG. 8 the portion 138B of FIG. 9, and the rest of
the circuits remain unchanged. FIG. 8 is the interface circuit
being used together with the general hand type timepiece in the
first embodiment of this invention, in which 1PA is the hour wheel,
and 1PB is the minute wheel, and on each side of the upper and
lower edge of said wheel, a pin is installed; 1PC is the second
wheel, of which on the upper edge, a pin is installed. When the
said upper three pins of three wheels are superimposed on one
straight line, the time would be 00:00 hour, or 12:00. When the
pins under the hour wheel and the minute wheel, and the pin on the
second wheel are superimposed on one straight line, the time would
be 03:58 and zero second (it may be set at a differrent time). The
diameter of pins on the hour wheel and the minute wheel is bigger
than that of the pin on the second wheels; the said three wheels
are all grounded. The lead wires (122, 123, 124, and 125) are all
made of fine steel wire having elasticity, and are all attached on
a fixed position. When the hour wheel and the minute wheel rotate
to the straight line between the lead-in wire and the wheel axle,
the lead-in wire will touch the pin. The lead wire 126, made of
fine steel wire with elasticity, can be moved forwards and
backwards; when the circuit is in stable state, the said lead wire
is at its rear position and will not touch the pin of the second
wheel. When the pin of the second wheel is rotating to the straight
line between the lead wire and the wheel axle, and when the said
lead wire is moved to its front position, the lead wire will touch
the said pin immediately.
When the upper pins of the hour wheel, the minute wheel and the
second wheel are almost supeimpoded on a straight line, the pins of
the hour wheel and minute wheel will first touch the lead wires
122, 124 because of the diameter of said pins is bigger than that
of the pin of the second wheel; then, the OR GATE 1PE will have a
LOW output, which will, thru the differential circuit and SCHMITT
TRIGGER 1PI, have a pulse output, and the said pulse will go thru
OR GATE 1PY, TRANSISTOR 1PU, and the relay 1PW to cause the lead-in
wire 126 to move forwards. When the said three pins are
superimposed on a straight line, the pin of second wheel will touch
the lead wire 126. If the aforesaid touching moment is at 00:00
hour, the NAND GATE 1PS will have a negative output pulse, which
will, thru NOR GATE 1PG, cause the T FLIP/FLOP 1PJ to have a HIGH
output so as to change PM into AM. AT the same time, the said
negative pulse will go thru INVERTER 1PT. TRANSISTOR 1PV and relay
1PX to cause the lead wire 126 to move backward. When the said lead
wire is touching the pin of the second wheel, it goes backward
immediately; in other words, the touching time is very short. By
the same token, when the pin under the bottom side of the hour
wheel and the minute wheel and the pin of the second wheel are
superimposed on a straight line, the lead wires 123, 125 will first
touch the pins, and the OR GATE 1PF will have a LOW output, which
will, thru the differential circuit, cause the SCHMITT TRIGGER 1PI
to have a pulse output so as to drive the lead-in wire 126 to move
forward. When the three pins are superimposed on a straight line,
the pin of second wheel touches the lead-in wire 126 and the time
is 03:58 AM (it may be set at different time) Then, the NAND GATE
1PS will have a negative output pulse, which will go thru NOR GATE
1PH and the AND GATE 1PL to cause the "Q" terminal of NOR R/S LATCH
1PM to change to HIGH and be applied to the following stage thru
lead wire 121. At the same time, the said negative pulse will go
through the INVERTER 1PT to cause the lead wire 126 to go
backwards. By the same token, when the upper two pins of the minute
wheel and the second wheel are almost superimposed on a straight
line, the lead wire 124 will first touch the pin, and the OR GATE
1PO will have a LOW output, which will, thru the differential
circuit, cause the SCHMITT TRIGGER 1PZ to have a pulse output to
move the lead wire 126 forwards. When the two pins are superimposed
in a straight line, the pin of the second wheel will touch the lead
wire 126; now, we use the said moment as the time of calibration,
i.e., 04:00 AM (For the American type system, it is 04:01 and zero
second). Then the NAND GATE 1PS will have an output of negative
pulse, which will thru NOR GATE 1PP, cause the "Q" terminal of NOR
R/S LATCH 1PQ to change to LOW which will become an output thru
lead-in wire 84 (for the circuit to be continued, see the
explanations in item 11). At the same time, the said negative pulse
will, thru INVERTER 1PT, cause the lead wire 126 to go
backwards.
4. As shown in FIGS. 4 and 5, INVERTER 2F will transmit pulses at
10 HZ to DIVIDER 3A where the 10 HZ pulses are divided by 10; then,
pulses at 1 HZ are, thru lead wire 76, delivered to COUNTER 24A so
as to start counting the time together with the timepiece 41 on a
synchronization basis. Simultaneously, the said 1 HZ pulse is
delivered to the input terminal of AND GATE 4H.
5. COUNTERS 4Z and 4ZA are the "ahead of time difference memory
circuit of timepiece 41", and COUNTER 4W is the "behind time
difference memory circuit of timepiece 41". If the timepiece 41 is
faster than the standard time, the COUNTERS 4Z and 4ZA will record
and store a time difference signal, comparing it with COUNTERS 4X
& 4Y; then, a non-equlibrium state will exist. Consequently, OR
GATE 4K will have a HIGH output, and the aforesaid 1 HZ pulses
will, thru AND GATE 4H & 4J, go into COUNTERS 4X & 4&
for count numbers. As soon as the counting is equal to the time
difference stored in COUNTERS 4Z & 4ZA, the output of OR GATE
4K becomes LOW, and the output of INVERTER 4L becomes HIGH.
Simultaneously the 1 HZ pulses will, thru OR GATE 4I and AND GATE
4M, be delivered to COUNTER 4W for continuously counting. If the
timepiece 41 is behind the standard time, the aforesaid pulse of 1
HZ will, thru AND GATE 4H, OR GATE 41, and AND GATE 4M, be
delivered to COUNTER 4W for count accumulation. When the COUNTER 4W
counter to number 81 which is approximately at 03:59 and 21 seconds
of standard time (it may be set at a different moment), the said
counter 4W will have a HIGH output, which will go thru OR GATE 4F
and lead wire 85 to cause the "Q" terminal of NOR R/S LATCH 5D to
generate a HIGH output. The said HIGH signal will go thru AND GATE
5B, lead wire 78, TRANSISTOR 7A, and RELAY 7B to cause the
telephone line 46 to be connected with the COUPLING TRANSFORMER 8A
as shown in FIG. 4, 5, and 10. At the same time, the HIGH OUTPUT
pulse of COUNTER 4W will go thru INVERTER 5F to cause the "Q"
terminal of NOR R/S LATCH 5G to go HIGH within one second. Two
seconds after that moment, the voice signal, if the telephone set
being used, will go thru lead wire 81, AND GATE 5C, and OR GATE 5E
to cause the HIGH at "Q" terminal of NOR R/S LATCH 5D to change to
LOW, and the said LOW causes the COUPLING TRANSFORMER 8A to
decouple from telephone line 46. On the other hand, if the
telephone set is not used and the COUPLING TRANSFORMER 8A is
connected to the telephone line 46, and the telephone set has a
continuous "hum" signal, the lead wire 81 will be in a LOW state,
and the "Q" terminal of NOR R/S LATCH 5D will remain in a HIGH
state, and the COUPLING TRANSFORMER 8A remains connected to the
telephone line 46 as shown in FIGS. 4, 5, 10. When the COUNTER 4W
continuously counts to 84, which is approximately equal at the
standard time of 03:59 and 24 seconds (it may be set at a different
moment), it will have a HIGH output pulse, which will go thru OR
GATE 4G, lead-in wire 73, and OR GATE 5H to cause the "Q" terminal
of NOR R/S LATCH 5G to change to LOW, and simultaneously to cause
the "Q" terminal of NOR R/S LATCH 5I to go HIGH. The said HIGH will
go thru AND GATE 5A, lead wire 77, TRANSISTOR 6A, and RELAY 6B to
cause the telephone 46 to decouple from telephone set 40 as shown
in FIGS. 4, 5, 10.
As shown in FIG. 10, the signal from the telephone lines 45, 46
goes thru the two stage amplifier comprising COUPLING TRANSFORMER
8A and TRANSISTORS 8C & 8D, the diode rectifier 10A, the RC
filter, and the FET amplifier 10B, a nd finally is delivered to
SCHMITT TRIGGER 10C & 10E to generate a syllable square wave,
which goes thru AND GATE 10F and lead wire 99 to subsequent
stages.
6. The pulse output of the aforesaid COUNTER 4W at count 84 will go
thru lead wire 73 to NAND GATE 12A together with the
non-equalibrium square wave of 10 HZ from INVERTER 2F. The output
pulse from INVERTER 2F is passed through a differentiator circuit,
lead wire 72 and OR GATE 12B to set the "Q" output terminal of NOR
R/S LATCH 12D HIGH. At the same time, the non-equilibrium (i.e.,
non-fifty percent duty cycle) square wave of 10 HZ (HIGH 67 ms, LOW
33 ms) passes through AND GAATE 12E and the lead wire 87 to be
counted on COUNTER 13A. When the first 10 HZ pulse enters COUNTER
13A, COUNTER 13A simultaneously delivers an output pulse to AND
GATE 15A then generated dial pulse of 67 ms, and when the 8th pulse
is applied to AND GATE 15B it also generates a dial pulse of 67 ms.
When the 15th pulse enters the input, NOR R/S LATCH 15G will have a
HIGH output level at its "Q" terminal so as to permit the 10 HZ
pulse, via AND GATE 15H, to continuously pass as an output. This
continues until the 21st pulse passes through NAND GATE 15E, the
differentiator circuit, and OR GATE 15G to cause the "Q" output
terminal of NOR R/S LATCH 15G to become LOW. During the period when
the "Q" terminal of NOR R/S LATCH 15G is HIGH, there is a total of
seven dial pulses delivered successively from AND GATE 15H; these
aforesaid dial pulses correspond to the telephone number of the
time repeat station 117, and all of these pulses, passes through OR
GATE 15C, NAND GATE 15D, lead wire 90, AND GATE 5B, lead wire 78,
and TRANSISTOR 7A to cause relay 7B to initiate a dialing action
(more details, see FIGS. 4, 5, 6, 10.)
When the 30th 10 HZ pulse enters COUNTER 13A, it generates a pulse
to cause the "Q" terminal of NOR R/S LATCH 14A to become LOW, and
to cause the output signal of OR GATE 15C to be inhibited at NAND
GATE 15D. At the same time via lead wire 93, this pulse from
counter 13A passes through AND GATE 4H to stop the 1 HZ signal from
reaching COUNTER 4W and being counted. Instead the 1 HZ signal
passes through INVERTER 14B, lead wire 80, the differentiator
circuit and OR GATE 22A to reset the COUNTERS 4W, 4X, 4Y, 4Z &
4ZA; for more details, see FIGS. 5 & 6. When used in the
American type of time repeat system, the dotted line portion 139A
of FIG. 6 is changed to the dotted line portion 139B of FIG. 12,
and the rest circuits remain unchanged.
The telephone number of time repeat stations in the United States
is a 7-digit number; for instance, in California, the number is
"7678900". As shown in FIGS. 4, 6, 10, 12, the non-equilibrium
square wave of 10 HZ passes thru lead wire 87 to COUNTER 13AA to be
cunted. When the first pulse is counted, COUNTER 13AA delivers a
pulse thru OR GATES 15AA and 15AE to cause the "Q" output terminal
of NOR R/S LATCH 15AI to go HIGH and to cause the 10 HZ pulse at
lead wire 87, to pass through AND GATE 15AJ, NAND GATE 15AK, lead
wire 90, AND GATE 5B, lead wire 78, and TRANSISTOR 7A successively
so as to cause the relay 7B to initiate a dialing action until the
7th pulse is received at COUNTER 13AA. COUNTER 13AA delivers a
pulse thru OR GATES 15AC and 15AF and with the 10 HZ pulse at lead
87 causes NAND GATE 15AG to provide a pulse through the
differentiator circuit, and OR GATE 15AH to cause the "Q" terminal
of NOR R/S LATCH 15AI to LOW. During the period when the "Q"
terminal of NOR R/S LATCH 15AI is HIGH, AND GATE 15AJ generates 7
successive dialing pulses correspond to "7" digits; by the same
token, the 13th thru 18th pulses correspond to "6"; the 24th thru
30th pulses stand for "7"; the 36th thru 43rd pulse represent "8";
the 49th thru 57th pulses correspond to "9"; the 63rd thru 72nd
pulses correspond to "0"; the 78th thru 87th pulse stand for "0";
the pulses generated by AND GATE 15AJ are the dialing pulses
corresponding to the number of the time repeat station. When the
99th pulse of 10 HZ is applied to COUNTER 13AA, it generates a
pulse to cause the "Q" terminal of NOR R/S LATCH 14AA to go LOW,
and to inhibit passage of 10 HZ pulses thru NAND GATE 15AK.
Simultaneously, the pulse from counter 13AA passes thru the delay
circuit comprising the INVERTER 14AB, SCHMITT TRIGGER 12AA, lead
wire 136 and OR GATE 12C to cause the "Q" terminal of NOR R/S LATCH
12D to go LOW, and to stop the count at the COUNTER 13AA. The
functions of NOR R/S LATCH 14AA and INVERTER 14AB are the same as
that of NOR R/S LATCH 14A and INVERTER 14B.
7. When connected to the time repeat station by dialing as shown in
FIG. 6, a series of time repeat signals, thru lead wire 99, are
applied to AND GATE 17A. The positive edge of each syllable square
wave passes thru the differentiator circuit and OR GATE 12C to
cause the "Q" terminal of NOR R/S LATCH 12D to go LOW. The 10 HZ
pulse is prevented from passing through AND GATE 12E and COUNTER
13A stop counting. The differentiated signal simultaneously passes
thru OR GATE 13B to cause the COUNTER 13A to reset.
The negative edge of each syllable square wave passes through
INVERTER 11A, the differentiator circuit and OR GATE 12B to cause
the "Q" terminal of NOR R/S LATCH 12D to go HIGH. The 10 HZ again
passes through AND GATE 12E to COUNTER 13A to start counting again,
with the same procedures repeating. As explained in (A) or (1)
mentioned above for the Chinese type time repeat signal, "Du . . .
", has a rather long silent interval from its start and end
syllables. It separates its start syllable with about 1.4 seconds
of silent interval, and its end syllable with about 0.8 seconds of
silent interval, and there are no other voice syllables having
longer silent interval from the start or the end syllables.
Consequently, if any syllable having a silent interval with its
start syllable over 1.4 seconds and with its end syllable over 0.8
seconds, it must be the syllable of the time repeat signal (Du . .
. ). In a series of syllable square waves A,B,C, if the silent
interval between A and B is longer than 1.4 seconds, and the silent
interval between B and C is shorter than 0.8 seconds, it indicates
B is not a "Du . . . " signal.
When the negative edge of an A syllable square wave causes the "Q"
terminal of NOR R/S LATCH 12D to go HIGH, and when a 10 HZ pulse
passes thru AND GATE 12E to COUNTER 13A to count to 1.4 seconds, it
generates a pulse which passes thru AND GATE 16G to cause the "Q"
terminal of NOR R/S LATCH 16H to go HIGH. The positive edge of a B
syllable square wave causes the counter 13A to reset, and its
negative edge causes the COUNTER 13A to re-count to 0.1 seconds;
COUNTER 13A generates a pulse which passes thru AND GATE 16A to
cause the "Qa" terminal of NOR R/S LATCH 16C to go HIGH. Before the
"Q", terminal of 16C goes LOW, the C syllable square wave is
generated and will passes thru AND GATE 16D and OR GATE 16E to
cause the "Q" terminal of 16H to go LOW, and to cause COUNTER 13A
to recount. In a series of syllable square waves D, E, F, if the
silent interval between D and E is longer than 1.4 seconds, and the
silent interval between E and F is longer than 0.8 seconds, it
indicates that E is the time repeat signal "Du . . . ", and the
circuit operates as follows.
When the negative edge of syllable square wave D causing the "Q"
terminal of NOR R/S LATCH 12D to go HIGH, the 10 HZ pulse passes
thru AND GATE 12E to cause COUNTER 13A to start counting. When the
second 10 HZ pulse is received at COUNTER 13A (0.1 seconds), it
generates a pulse which passes thru AND GATE 16A to cause the "Q"
terminal of NOR R/S LATCH 16C to go HIGH. When the 9th pulse is
applied to COUNTER 13, that COUNTER generates a pulse which passes
thru OR GATE 16B to cause the "Q" terminal of NOR R/S LATCH 16C to
go LOW. When the 15th pulse is received (1.4 seconds), COUNTER 13A
generates a pulse which passes thru AND GATE 16G to cause the "Q"
terminal of NOR R/S LATCH 16H to go HIGH. When next syllable square
wave E appears, its positive edge causes the COUNTER 13A to reset,
and its negative edge causes COUNTER 13A to start re-counting. By
the same token, when the second 10 HZ pulse is received (0.1
seconds), the "Q" terminal of NOR R/S LATCH 16C goes HIGH. When the
9th pulse is received (0.8 seconds), COUNTER 13A generate a pulse
going thru OR GATE 16B and AND GATE 16I to cause the "Q" terminal
of NOR R/S LATCH 16C to go LOW and the "Q" terminals of 16J and 16L
to go HIGH. At this time, the voice signal and time repeat signal
are separated by the HIGH and LOW voltages of the "Q" terminal of
16L. When the 89th pulse is received (8.8 seconds), i.e., between
the last syllable of the voice signal and the "Du . . . " syllable
of next time repeat signal, the COUNTER 13A generates a pulse going
thru OR GATE 16K to cause the "Q" terminal of NOR R/S LATCH 16L to
go LOW. When the "Q" terminal of 16L is HIGH, all receives signals
are voice signals, and thru AND GATE 18A, cause COUNTER 19A to
count the number of syllables. When the "Q" terminal of 16L is LOW,
the output of inverter 16M is HIGH; during this time, all the
received signals are the time repeat sigal, "Du . . . ", which
passes thru AND GATE 17A as an output; the positive edge of said
signal causes COUNTER 13A to reset, and its negative edge causes
COUNTER 13A to re-count; the aforesaid procedures are repeated
every 10 seconds.
The first calibration time of the embodiment of this invention
04:00, or other suitable time; its voice signal comprises 10
syllables, i.e., "hsia mien yin hasiang szu dien ling fed ling
miao". When the "Q" terminal of NOR R/S LATCH 16L is HIGH, the
syllable counted by COUNTER 16A is ten, and time repeat signal to
be announced is that of 04:00, which will go thru AND GATE 20A and
OR GATE 20C to cause the "Q" terminal of NOR R/S LATCH 21A to go
HIGH. At the same time, the said HIGH, thru lead wire 53, is
applied to the "secondary timepiece". For the American type of time
repeat system, the dotted portion 139A of FIG. 6 is replaced with
the dotted line portion 139B of FIG. 12 without changing other
circuits. According to the explanation in (A), (2) of "1" above,
the preparatory signal (Du) and time repeat signal (Lin) of the
American type of time repeat system have longer silent invervals
from their adjacent syllables respectively; "Du . . . " has about
0.7 seconds silent interval from its start syllable, and has about
0.5 seconds silent interval from its end "Lin . . . " syllable; the
said "Lin . . . " syllable has about 1.4 seconds silent interval
from its end syllable, and there are no such conditions with other
voice signal.
In a series of syllable square wave of G, H, I, J, if the silent
interval between G and H is longer than 0.7 seconds, and the silent
interval between H and I is shorter than 0.5 seconds then, the
negative edge of G enables a pulse of 10 HZ to pass thru lead wire
87 to cause COUNTER 13AA to count. When the 8th pulse of 10 HZ is
received (0.7 seconds), COUNTER 13AA generates a pulse which passes
thru AND GATE 16AA to cause the "Q" terminal of NOR R/S LATCH 16AB
to go HIGH. When the syllable square wave is received, its positive
edge resets COUNTER 13AA, and its negative edge causes COUNTER 13AA
to re-count. After 0.1 seconds, COUNTER 13AA generates a pulse
which passes thru AND GATE 16AL to cause the "Q" terminal of NOR
R/S LATCH 16AN to go HIGH, and before the "Q" terminal of 16AN goes
LOW, the I syllable square is generated. The said I syllable passes
through lead wire 99, AND GATE 16AO and OR GATE 16AF to cause the
"Q" terminal of 16AB to go LOW, and to cause COUNTER 13AA to
re-count. By the same token, if the silent interval between G and H
is longer than 0.7 seconds, and the silent interval between H and I
is longer than 0.5 seconds, and the silent interval between I and J
is shorter than 1.4 seconds, and when the negative edge of the G
square wave makes COUNTER 13AA re-count for 0.7 seconds, the "Q"
terminal of NOR R/S LATCH 16AB changes to HIGH. When the negative
edge of the H square wave causes the COUNTER 13AA to count for 0.5
seconds, the "Q" terminal of 16AD changes to HIGH as well. When the
negative edge of the I square wave causes COUNTER 13AA to count for
0.1 seconds, the "Q" terminal of 16AN goes HIGH. Before the "Q"
terminal of 16AN goes LOW, the J syllable square wave is generated
and causes the "Q" terminals of 16AB and 16AD to go LOW and causes
the COUNTER 13AA to re-count.
If the silent interval between H and I is longer than one second,
COUNTER 13AA, upon counting to one second, generates a pulse which
is transmitted thru AND GATE 16AE; then, the output of inverter
16AT is HIGH. Consequently, the said pulse passes thru AND GATE
16AE and OR GATE 16AF to cause the "Q" terminals of 16AB and 16AD
to go LOW so as to prevent the NOR R/S LATCH 16AI and 16AR from
generating an abnormal effect; for more details, see FIG. 12. In a
series of syllable square waves of K, L, M, N, if the silent
interval between K and L is longer than 0.7 seconds, and the silent
interval between L and M is longer than 0.5 seconds, and between M
and N is longer than 1.4 seconds; it indicates that L is the
preparatory signal "Du . . . ", and M is the time repeat signal
"lin . . . ", and the circuit will operate as follows: The negative
edge of syllable square wave K has a 10 HZ pulse of applied to
COUNTER 13AA thru lead wire 87 and causes the COUNTER 13AA to
count. When the 8th pulse of 10 HZ is applied (0.7 seconds),
COUNTER 13AA generates a pulse which passes thru AND GATE 16AA to
cause the "Q" terminal of NOR R/S LATCH 16AB to go HIGH. When the
syllable square wave L is applied, its positive edge causes the
COUNTER 13AA to reset, and its negative edge again causes the
COUNTER 13AA to re-count. When the 6th pulse of 10 HZ is received
(0.5 seconds), COUNTER 13AA again generates a pulse which passes
thru AND GATE 16AC to cause the "Q" terminal of NOR R/S LATCH 16AD
to go HIGH. By the same token, the syllable square wave M again
causes the COUNTER 13AA to recount. When the 15th pulse of 10 HZ is
received (1.4 seconds), COUNTER 13AA again generates a pulse which
is passed thru AND GATE 16AH to cause the "Q" terminals of NOR R/S
LATCH 16AE and 16AR to go HIGH. Beginning at this time, the voice
and time repeat (including preparatory) signals are separated by
the HIGH and LOW voltages of "Q" terminal of 16AR. When the 82nd
pulse is received (8.1 seconds), which is approximately between the
last syllable of voice signal and the next preparatory signal, "Du
. . . ", the COUNTER 13AA again generates a pulse which passes thru
OR GATE 16AQ to cause the "Q" terminal of 16AR to go LOW. During
the HIGH state of the "Q" terminal of 16AR, all the signals
appeared received are voice signal and pass thru lead wire 99 and
AND GATE 18AA. During the LOW state of "Q" terminal of 16AR,
inverter 16AS generates a HIGH output, and during that time, the
received signal is preparatory signal "Du . . . " and the time
repeat signal "Lin . . . ", which will go thru AND GATE 17A to
provide output. The positive edge of this signal causes COUNTER
13AA reset, and its negative edge causes COUNTER 13AA to re-count.
The said procedures repeat once again every 10 seconds; for more
details, see FIGS. 6 and 12.
The first embodiment of this invention is suitable for the American
type of time repeat system, and it is set at 04:01 AM, or other
suitable time. According to the explanations in (B), (2) of "1"
mentioned above, the voice signal comprises three syllable groups
a, b, c, and the syllable groups a and b each have more than two
syllables, while the syllable group b has two or more than two
syllables before 04:00 and 50 seconds. At 04:01, the said b
syllable group reduces to only one syllable with longer silent
intervals from its start and end syllables; the said one syllable
has a silent interval from its start syllable longer than 0.5
seconds, and has a silent interval from its end syllable longer
than 1.2 seconds. There is no other voice syllable having such a
long silent interval from its adjacent syllables; therefore, in a
series of voice signal syllables, if there is any syllable having a
silent interval from its start and end syllables longer than 0.5
seconds and 1.2 seconds respectively, it must be the voice signal
of 04:01, i.e., the only syllable group with one syllable.
In a series of voice syllable square waves of R, S, T which are
passed thru lead wire 99 and AND GATE 18AA as output, if the silent
interval between R and S is longer than 0.5 seconds, and between S
and T is shorter than 1.2 seconds, the S is not a one syllable
signal. The negative edge of the R square wave passes thru inverter
19AA and differentiator circuit to cause the "Q" terminal of NOR
R/S LATCH 19AB to go HIGH. The 10 HZ pulse passes thru lead wire 71
and AND GATE 19AC to cause counter 19AE to start to count. When the
6th pulse of 10 HZ is received (0.5 seconds), counter 19AE
generates a pulse to cause the "Q" terminal of NOR R/S LATCH 19AG
to go HIGH. If the silent interval between the R and S syllables is
over 1.2 seconds, the "Q" terminal of NOR R/S LATCH 19AL is LOW,
and the output pulse of counter 19AE does not pass thru AND GATE
19AH, and the "Q" terminal of NOR R/S LATCH 19AI does not change
its state. When syllable square wave S is received, its positive
edge passes thru the differentiator circuit and OR GATE 19AD to
cause counter 19AE to reset, and to cause the "Q" terminal of NOR
R/S LATCH 19AB to go LOW. The pulse of 10 HZ cannot pass thru AND
GATE 19AC and the negative edge of said pulse causes counter 19AE
to re-count. Upon counting for 0.1 seconds, the said counter
generates a pulse which passes thru AND GATE 19AJ to cause the "Q"
terminal of NOR R/S LATCH 19AL to go HIGH. Before the "Q" terminal
of 19AL becomes LOW, the syllable square wave T is generated and
passes thru AND GATE 19AM and OR GATE 19AF to cause the "Q"
terminal of 19AG to go LOW, and to cause the counter 19AE to
re-count; for more details, see FIG. 12.
In a series of voice syllable square waves of U, V, W, if the
silent interval between U and V is longer than 0.5 seconds, and
between V and W is longer than 1.2 seconds; in that case, the V is
the only syllable "one" of syllable group "b" of voice signal at
04:01; then, the circuit will have the following operation: The
negative edge of syllable square wave U causes the counter 19AE to
count, and upon counting for 0.5 seconds, the said counter
generates a pulse to cause the "Q" terminal of 19AG to go HIGH.
Upon reception of syllable square wave V, its positive edge causes
counter 19AE reset, and its negative edge causes 19AE to re-count
for 0.1 seconds. Then, it will generate a pulse which passes thru
AND GATE 19AJ to cause the "Q" terminal of 19AL to go HIGH, which
will be reflected at AND GATE 19AH. Upon counting for 1.2 seconds,
19AE again generates a pulse which is passed thru AND GATE 19AH to
cause the "Q" terminal of 19AI to go HIGH, which is further
reflected at AND GATE 20AD. When inverter 16AS provides a HIGH
output and and transmits it thru lead wire 135 and to AND GATE 17A,
the syllable square wave of preparatory signal "DU . . . " and the
time repeat signal "Lin . . . " pass thru lead wire 99, AND GATE
17A and lead wire 134 to inverter 20AA and AND GATE 20AD. The
negative edge of the square wave of the preparatory signal "DU . .
. " passes thru inverter 20AA and the differentiator circuit to
cause the "Q" terminal of NOR R/S LATCH 20AC to go HIGH. Therefore,
only the square wave of the time repeat signal "Lin . . . "
received afterwards can pass thru AND GATE 20AD. The said square
wave of "Lin . . . " is the time repeat signal right at 04:01,
which is passed thru lead wire 132 and OR GATE 20C to cause the "Q"
terminal of NOR R/S LATCH 21A to go HIGH. At the same time, it
passes thru lead wire 53 to enter into the secondary timepiece; see
FIGS. 6 and 12 for further details.
8. As explained in "4" mentioned above, a pulse of 1 HZ in applied
thru lead wire 76 to cause counter 24A to count at constant speed
and in synchronization with timepiece 41; when counting to the
designed calibration time (04:00 of Chinese type, or 04:01 of
American type), it generates a pulse to cause the "Q" terminal of
NOR R/S LATCH 25A to go HIGH; for further details, see FIG. 5.
9. As shown in FIGS. 5, 6 and 7, if the "Q" terminal of NOR R/S
LATCH 21A goes HIGH first, and as soon as the "Q" terminal of the
NOR R/S LATCH 25A changes to HIGH, the output of "Q" terminal of
21A passes thru lead wire 79 to cause inverter 27A to transmit a
LOW to AND GATE 27B. When the HIGH pulse of "Q" terminal of 25A is
applied to 27B thru lead wire 92, the "Q" terminal of NOR R/S LATCH
27C is still LOW; on the contrary, when the "Q" terminal of 25A
goes HIGH, it causes the "Q" terminal of 27C to go HIGH
simultaneously.
10. As shown in FIGS. 5, 6 and 7, when the "Q" terminal of NOR R/S
LATCH 21A or 25A goes HIGH, and this is reflected thru OR GATE 28D
to AND GATE 28E, a pulse of 10 HZ passes thru lead wire 71, AND
GATE 23B and 28E to counters 28I, 28J, and 28K for counting the
time difference, and the OR GATE 28O output goes HIGH. When the "Q"
terminal of 21A and 25A goes HIGH, the output of AND GATE 28A is
HIGH and is reflected thru inverter 28B to become a LOW applied to
AND GATE 28E. At this time, the counter 28I, 28J, 28K stops
counting and the 10 HZ pulse passes thru AND GATE 28C to counters
28F, 28G, 28H for counting. When their count is equal to the time
difference counted by counter 28I, 28J, 28K, the output of OR GATE
28O changes to LOW, and the counters 28F, 28G, 28H stop
counting.
11. If the "Q" terminal of NOR R/S LATCH 21A goes HIGH before the
"Q" terminal of 25A goes HIGH, the "Q" terminal of NOR R/S LATCH
27C is LOW in accordance with the explanation in "9" above. Then,
the inverter 27D provides a HIGH output which is passed through OR
GATE 30A to AND GATE 30B. Consequently, when the telephone time
repeat signal causes the "Q" terminal of 21A to go HIGH, the HIGH
pulse passes thru lead wire 79, AND GATE 30B, and the
differentiator circuit, from which a differentiator signal is
generated and passes thru lead wire 65 to the timepiece 41 for
resetting the seconds to zero. At the same time, the HIGH of the
"Q" terminal of 21A passes thru AND GATE 31A and lead wire 66 to
the timepiece 41 to operate the "fast set control" until the
timepiece 41 reaches the calibration time, i.e., 04:00 (In American
type, it is 04:01). An excitation signal is then generated and
passed thru lead wire 120 and AND GATE 1M to cause the "Q" terminal
of NOR R/S LATCH 1J to go LOW. That LOW is transmitted thru lead
wire 84 and AND GATE 31A to stop the "fast set control" and to
continue the counting. The time indicated by timepiece 41 is now at
the standard time, i.e., 04:00 (In American type, it will be
04:01). Up to this moment, calibration of the timepiece lagging the
standard time is automatic. On the contrary, if the "Q" terminal of
25A goes HIGH earlier than the "Q" terminal of 21A, the "Q"
terminal of 27C goes HIGH in accordance with the explanations in
"9" above. According to the explanations in "10" above, when the
timepiece 41 reaches 04:00, the predetermined calibration time (In
American type, it is 04:01), it generates a pulse to cause the "Q"
terminal of 25A to go HIGH, to cause the counter 28I, 28J, to count
the time difference, and also to cause OR GATE 28O to generate a
HIGH at AND GATE 29A. Consequently, when the "Q" terminal of 21A
goes HIGH, the said HIGH passes thru lead wire 79, AND GATE 29A,
and lead wire 64 to timepiece 41 to stop the timepiece for an
interval which is equal to the time difference. In other words, the
timepiece resumes running upon the output of OR GATE 28O changing
to LOW; then, the time indicated by the timepiece 41 is the
standard time. Calibration of the timepiece ahead of standard time
is automatically done; for further details, see FIGS. 2, 4, 5, 6
and 7. If the conventional timepiece is a hand type timepiece, the
dotted line portion 138A of FIG. 7 should be replaced with the
dotted line portion 138B of FIG. 9. If the "Q" terminal of NOR R/S
LATCH 21A goes HIGH earlier than the "Q" terminal of 25A, the pulse
of 240 HZ enters divider 37B thru lead wire 74 and is divided by
10. The pulse of 24 HZ then passes thru AND GATE 37A and lead wire
66 to timepiece 41 to causes the second hand of timepiece to rotate
fast. When the second hand reaches the predetermined calibration
time, 04:00 (In American type, it is 04:01), the "Q" terminal of
NOR R/S LATCH 10Q goes LOW as explained in "3" above. Then this LOW
level is reflected thru lead wire 84 to AND GATE 37A to stop the
fast rotation of the second hand and to continue counting time.
Now, the time indicated by the timepiece 41 is the standard time of
04:00 (In American type, it is 04:01), calibration of the timepiece
lagging the standard time is done automatically. On the contrary,
if the "Q" terminal of 25A HIGH earlier than the "Q" terminal of
21A, the output of AND GATE 36A passes thru lead wire 64 to
timepiece 41 to stop the timepiece for an interval which is equal
to the time difference. Then, the time indicated by the timepiece
is the standard time, and the calibration of timepiece ahead of
standard time is done automatically. The theory of generating
stopping signal with AND GATE 36A is the same as that of AND GATE
29A; for further details, see FIGS. 5, 6, 7, 8 and 9.
12. If the timepiece 41 is lagging the standard time, the Q
terminal of NOR R/S LATCH 27C will, in accordance with the
explanation in "9" mentioned above, remain LOW. The pulse of 10 HZ
passes from AND GATE 28C, and thru AND GATE 32A and lead wire 67
for further output; on the contrary, if the timepiece 41 is ahead
of the standard time, the time difference pulse of 10 HZ passes
thru AND GATE 33A and lead wire 68 for further output. According to
the explanation in "10" mentioned above, the number of output
pulses is just equal to the time difference number counters by
counter 28I, 28J, 28K, and each pulse is equal to 1/10 seconds of
time difference as shown in FIGS. 2 and 7.
If timepiece 41 has no calibration device, there is a switch 44
connected to "+V". If the said timepiece is lagging the standard
time, the time difference pulse passes thru AND GATE 32A, OR GATE
34A to divider 34B to be divided by 10. Then, the time difference
pulse of 1 HZ will go thru AND GATE 34D, lead wire 94, OR GATE 4I
and AND GATE 4M to counter 4W for memory. By the same token, if the
timepiece 41 is ahead of standard time, the time difference pulse
passes thru AND GATE 33A and OR GATE 34A to divider 34B to be
divided by 10. Then, the time difference pulse of 1 HZ passes thru
AND GATE 34C and lead wire 89 to counter 4Z and 4ZA for remembering
the time difference of timepiece 41 so as to use the memory for
resetting the time of dialing the telephone of time repeat station.
The theory of circuit function is the same as that explained in "5"
mentioned above as shown in FIGS. 2, 5, 7. If the timepiece 41 has
a calibration device, the switch 44 is connected to ground. If the
timepiece 41 is lagging the standard time, the time difference
pulse of 10 HZ is generated from AND GATE 32A, going thru lead 67
to the fast setting device of timepiece 41 so as to automatically
calibrate the timepiece lagging the standard time. By the same
token, if the timepiece 41 is ahead of the standard time, the time
difference pulse of 10 HZ is generated by AND GATE 33A, and passes
thru lead wire 68 to the backward setting device of timepiece 41 so
as to automatically calibrate the timepiece ahead of the standard
time as shown in FIGS. 2 and 7.
13. If the telephone time repeat signal has set the "Q" terminal of
NOR R/S LATCH 21A HIGH, the said HIGH is transmitted thru lead wire
79, the retarding circuit, and OR GATE 5E to cause the "Q" terminal
of NOR R/S LATCH 5D to go LOW; then, the telephone line 46 is
separated from the coupling transformer 8A and connected with
telephone set 40 as shown in FIGS. 4, 6 and 10.
14. As explained in "10" mentioned above, when counters 28F, 28G,
28H count to a number which is equivalent to the time difference
recorded by counters 28I, 28J, 28K, the output of OR GATE 28O is
LOW, and the output of inverter 28P is HIGH, which is reflected
thru the retarding circuit comprising AND GATE 28Q, OR GATE 35B,
and SCHMITT TRIGGER 35A, and the differentiator circuit, the lead
wire 75, and OR GATE 1K, OR GATES 1C and 1H to cause the "Q"
terminals of NOR R/S LATCH 1B and 1I to go LOW. Then, all circuits
will be placed to the state as explained in "2" mentioned above as
shown in FIGS. 4 and 7.
15. For the timepiece using A.C. power, in the case of the power
being off and turning on again, the SCHMITT TRIGGER 26D generates
an excitation signal to cause the "Q" terminal of NOR R/S LATCH 26E
to go HIGH, and the circuit has the following operation:
(A). The said HIGH is transmitted thru OR GATES 26F and 26I to
cause the "Q" terminal of NOR R/S LATCH 26H to LOW, and the "Q"
terminal of 26K to go HIGH. The rest circuits are restored to the
state as explained in "2" mentioned above as shown in FIG. 7.
(B). The said HIGH is reflected thru lead wire 70 and OR GATE 2D to
cause the OSC., composed with SCHMITT TRIGGER 2E to generating a
pulse of 10 HZ. This pulse passes thru inverter 2F, lead wire 71
and AND GATE 26A to cause the LED 26B to glow to show that the
power is off, as shown in FIGS. 4 and 7.
(C). The "Q" terminal of NOR R/S LATCH 26K goes HIGH, which is
reflected thru lead wire 86 to AND GATES 4B and 4C. Then, the
starting time of next dialing the time repeat station will be
advanced to 03:58 and one second (It may be set at other time), and
the counter 24A generates a pulse which is transmitted thru AND
GATE 4B and 4C for exciting the following circuits as shown in
FIGS. 5 and 7.
(D). The time difference counted by counter 28I, 28J, 28K at the
first time calibration after the power is turned on should not be
considered as the time difference of a whole day; now, the "Q"
terminal of NOR R/S LATCH 26H changes to LOW, and the time
difference pulse at this time does not pass thru AND GATE 32A or
33A for output as shown in FIG. 7.
(E). Upon the completion of the first time calibration after the
power is turned on, the "Q" terminal of NOR R/S LATCH 26H is
restored to HIGH, and the "Q" terminal of 26K is again restored to
LOW upon the completion of the second time calibration as shown in
FIG. 7.
16. In case of the telephone service being interrupted during
circuit functioning, AND GATE 16F generates a pulse, which passes
thru lead wire 103 to OR GATE 26F to enable counter 24A to
generate, at 04:02 (it may be set at other time), a pulse which is
passed thru lead wire 88 to OR GATE 26F, thereby generating the
circuit function as explained in (A), (C), (D), (E) of "15" above;
for fruther details, see FIGS. 5, 6, 7.
17. Under normal conditions, the switch 43 is connected to "+V" 56
. In case of power being off for over 25 minutes, or the timepiece
having a time difference for over 25 minutes, the switch 43 may be
connected to ground; then, the circuit automatically dials the
telephone time repeat station, and the time repeat voice and signal
are announced by speaker 9B for time calibration. When the switch
43 is connected to ground, the output of SCHMITT TRIGGER 38A is
HIGH, which passes thru lead wire 51 to cause the "Q" terminal of
NOR R/S LATCH 26E to go LOW. The LED 26B is turned off as shown in
FIGS. 4, 7, 10.
18. In the case of calibrating the time and re-setting the speed
once a day, switch 42 should be connected to ground. In the case of
the said switch 42 being connected to "+V" 56, the time calibration
and the speed resetting will be once every hour. Under such
condition, the counter 24A generates a pulse, at about 10 seconds,
(In American type, it would be about 30 seconds) before zero second
of each hour (In American type, it is at the first minute and zero
second of each hour). That pulse is passed through go thru AND GATE
4D and 4E to excite the automatic dialing circuit as shown in FIGS.
4 and 5.
For time difference counting, the OSC. circuit composed with
SCHMITT TRIGGER 2H generates a pulse of 240 HZ which is passed thru
inverter 2G, lead wire 74, AND GATE 23A, OR GATE 23C, and AND GATE
28E to counters 28I, 28J, 28K for fulfilling the function as shown
in FIG. 7. In this embodiment of this invention, the secondary
timepiece system comprises only 1-3, 9, 21, 23-33, 35-39, 43, 55
and the conventional timepiece 114 as shown in FIGS. 2 and 11, and
the theory of circuit functions is the same as that the primary
timepiece mentioned above.
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